I have only tried British guys, so can`t comment on other nationalities.

I suppose one way to test this theory is to consider the size of condoms you can buy over the counter as standard. If guys were truly bigger in Sweden, the demand for large condoms would lead to larger ones being sold as standard. Are they different to those you buy elsewhere?

I had heared that condoms on sale in South Africa are bigger, don`t know if this is true.